powerful images of this day. this is what president barack obama saw as he stepped out on that capitol podium for the last time in his presidency. the president placing his hand on the bible of martin luther king jr., and another bible, the one belonging to president lincoln. and then later on, as the parade was about to begin, the first family, a modern scene here. dad on his blackberry, the girls snapping pictures on their iphones. all day long, abc's david muir has been following this, he was there at the capitol watching history on parade this morning. we begin you with, david. >> reporter: diane, good evening. you're right. we were just a few steps away from the president, with his hand placed on those two bibles. authorities here in washington were estimating 600,000 to 800,000 people would turn out to the national mall to watch this swearing in. but tonight, we just learned from the inaugural committee, just like four years ago, that crowd might have surpassed a million. at the white house, a salute to the president, who was about to be sworn in before the nation. first, that 1.